GERO Tactical Green and Red Dot Sight - 4 Reticles Reflex Sight with Built-in Weaver-Picatinny Rail Mount for 22mm Rail Base - Water Resistant Shockproof & Lightweight with Adjustable Brightness GET ACCURATE SIGHTING - Holds zero for longer periods of time and more rounds than any other HEAVY DUTY - Can withstand straight hits on the glass by paintballs traveling around 280 - 300 feet per second (.68 caliber) without even scratching GOOD EYE RELIEF - With the different reticle settings and adjustable brightness, it offers great eye relief and a clear sight SAVE YOUR BUDGET - Inexpensive, but not cheap. Designed for easy use and made with high quality material, its lightweight, water-resistant, and shockproof features, allow for perfect performance under all climate conditions BUY YOURS TODAY!! Get one for each of your guns and let us know what you think!